对于此代码，它总是给我：{“消息”：“缺少必填字段”，“成功”：0}
这意味着它没有进入 if 身体！它总是去别的地方！我不知道为什么！
reg_Doc_to_Patient.php
==========
<?php
/*
* Following code will update a product information
* A product is identified by product id (pid)
*/
// array for JSON response
$response = array();
// check for required fields
if(isset($_POST['id']) && isset($_POST['Doc_id']) ) {
$id = $_POST['id'];
$Doc_id = $_POST['Doc_id'];
// include db connect class
require_once __DIR__ . '/db_connect.php';
// connecting to db
$db = new DB_CONNECT();
// mysql update row with matched pid
$result = mysql_query("UPDATE patients SET Doc_id = '$Doc_id' WHERE id = $id");
// check if row inserted or not
if ($result) {
// successfully updated
$response["success"] = 1;
$response["message"] = "Product successfully updated.";
// echoing JSON response
echo json_encode($response);
} else {
}
} else {
// required field is missing
$response["success"] = 0;
$response["message"] = "Required field(s) is missing";
// echoing JSON response
echo json_encode($response);
}
?>
AllRequests.java
==========
package com.example.rpm;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Toast;
import com.example.rpm.Accept.SaveProductDetails;
import com.example.rpm.AllDoctor.LoadAllProducts;
public class AllRequests extends ListActivity {
// Progress Dialog
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();
JSONParser jsonParser = new JSONParser();
ArrayList<HashMap<String, String>> productsList;
// url to get all products list
private static String url_all_products = "http://10.0.2.2/RPM-connect/get_all_requests.php";
private static String url_edit_products = "http://10.0.2.2/RPM-connect/reg_Doc_to_Patient.php";
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_DOCTOR = "products";
private static final String TAG_Patient_ID = "Patient_ID";
private static final String TAG_Doctor_ID= "Doctor_ID";
private static String id=""; // of patient
private static String Doc_id="";// of Doctor
// products JSONArray
JSONArray doctor = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.requests);
// Hashmap for ListView
productsList = new ArrayList<HashMap<String, String>>();
// Loading products in Background Thread
new LoadAllProducts().execute();
// Get listview
ListView lv = getListView();
// on seleting single product
// launching Edit Product Screen
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long idd) {
// getting values from selected ListItem
final String p_Id = ((TextView) view.findViewById(R.id.p_id)).getText().toString();
final String d_Id = ((TextView) view.findViewById(R.id.d_id)).getText().toString();
id= p_Id;
Doc_id= d_Id;
new VerivyDocToPatient().execute();
Toast.makeText(getApplicationContext(), "yes", 500).show();
// Starting new intent
//Intent in = new Intent(getApplicationContext(), AllRequests.class);
// sending pid to next activity
//in.putExtra(TAG_ID, Id);
// starting new activity and expecting some response back
// startActivityForResult(in, 100);
}
});
}
// Response from Edit Product Activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// if result code 100
if (resultCode == 100) {
// if result code 100 is received
// means user edited/deleted product
// reload this screen again
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
/**
* Background Async Task to Load all product by making HTTP Request
* */
class LoadAllProducts extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(AllRequests.this);
pDialog.setMessage("Loading doctors. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from url
* */
protected String doInBackground(String... args) {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_all_products, "GET", params);
// Check your log cat for JSON reponse
Log.d("All Products: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// products found
// Getting Array of Products
doctor = json.getJSONArray(TAG_DOCTOR);
// looping through All Products
for (int i = 0; i < doctor.length(); i++) {
JSONObject c = doctor.getJSONObject(i);
// Storing each json item in variable
String Patient_ID = c.getString(TAG_Patient_ID);
String Doctor_ID = c.getString(TAG_Doctor_ID);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_Patient_ID, Patient_ID);
map.put(TAG_Doctor_ID, Doctor_ID);
// adding HashList to ArrayList
productsList.add(map);
}
} else {
// no products found
// Launch Add New product Activity
Intent i = new Intent(getApplicationContext(),
Adddoctor.class);
// Closing all previous activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
AllRequests.this, productsList,
R.layout.list_requests, new String[] { TAG_Doctor_ID,TAG_Patient_ID },
new int[] { R.id.p_id, R.id.d_id
});
// updating listview
setListAdapter(adapter);
}
});
}
}
/**
* Background Async Task to Save product Details
* */
class VerivyDocToPatient extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(AllRequests.this);
pDialog.setMessage("verifying...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
/**
* Saving product
* */
protected String doInBackground(String... args) {
// getting updated data from EditTexts
//String ID = txtID.getText().toString();
/*String Fname = txtFname.getText().toString();
String Sname = txtSname.getText().toString();
String Lname = txtLname.getText().toString();
String Specialist = txtSpecialist.getText().toString();
String Gender = txtGender.getText().toString();
String Workphone = txtWorkphone.getText().toString();
String password = txtpassword.getText().toString();
*/
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair(TAG_Patient_ID, id));
params.add(new BasicNameValuePair(TAG_Doctor_ID, Doc_id));
// sending modified data through http request
// Notice that update product url accepts POST method
JSONObject json = jsonParser.makeHttpRequest(url_edit_products,
"POST", params);
Log.d("aaaa",json.toString());
// check json success tag
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// successfully updated
Intent i = getIntent();
// send result code 100 to notify about product update
setResult(100, i);
finish();
} else {
// failed to update product
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog once product uupdated
pDialog.dismiss();
}
}
}
有什么帮助吗？